Money-drawer alarm



R. M. CAMPBELL.

Money Drawer Alarm.

Patented July 12. 1859.

Inl/enfer.'

n, PETERS. Pham-mmsmpher. wshingmn, n, c.

UNITED STATES PATENT OFFICE.

ROBERT M. CAMPBELL, OF EAST CAMBRIDGE, MASSACHUSETTS, ASSIGNOR TOHIMSELF, AND BENJAMIN \VRIGHT, OF BOSTON, MASSACHUSETTS MONEY-DRAWERALARM.

Specification of Letters Patent No. 24,775, dated July 12, 1859.

T o all whom it may concern:

Be it known that I, ROBERT M. CAMPBELL, of East Cambridge, in the countyof Middlesex and State of Massachusetts, have invented a new and usefulor Improved Money-Drawer Alarm; and I do hereby declare that the same isfully described and represented in the following specification and theaccompanying drawings, of whichlo Figure l, is a top view of a drawerand the alarum, or alarm apparatus thereof, the cover plate of the alarmbell and striking apparatus being removed. Fig. 2, is a top view of theseries of key slides and T bars, the cover of their case being exhibitedas raised into a vertical position. Fig. 3, is a longitudinal sectiontaken through the drawer and the spring latch and made to exhibit thetwo levers on one side of the latch. Fig. t, is a transverse section ofthe front end of the drawer, it being taken through the lock and the armof the shaft of the cover latching apparatus In such drawings, A,denotes the drawer,

and B, the bench board box, or counter to or under which such drawer isapplied in the usual manner, the said part B, being provided with acatch C, formed and arranged as shown in Fig. 3.

39 At the rear part of the drawer is a common clock alarm D, the strikerof which is shown at a, and the bell at while the wheel work or trainfor actuating the striker is exhibited at c. Between such wheel work andthe bell I arrange a spring bolt or latch E, and two levers F, Gr, suchparts having the form as shown in Fig. 3, and in side views in Figs. 5,6, and 7. The foot of the latch E, rests on a spring UZ, which serves toelevate 40 the latch. In rear of the upper part of the latch there isanother spring c, for throwing it forward. From the left side of thelatch E, two pins f, g, project and between them, the upper arm of thelever Gr, passes and rests on the lowermost pin. The upper arm of theother lever is extended upward and immediately in rear of the upper pin.The lower ends of the lower arms of the said two levers are respectivelyjointed to two wires,

L, i, extending from two T bars, H, I, each W. ofnzhcl1 co nsists of twostraight bars 7c Z, or m, n, one of which is aiiixedW iipn and at rightangles to the other as shown in Fig. 2, and also in Figs. 8, and 9,which exhibit top views of the T bars as separated from their case K.Such case is a shallow box, furnished with a cover or lid o, andarranged within the front portion of the bottom of the drawer.

The two T bars, H, I, operate in connection with a series of five or anyother suitable number of key slides L, L', L2, L3, L4 arranged withinthe box or case K, and with respect'to the T bars as shown in Fig. 2.Each of the key slides has a projection or linger key, p, projectingdownward from its front end and through one of a series of slots, g, g,g, g, g, made through the bottom of the box K as shown in Figs. 2, and3. Furthermore, each key slide is furnished with two holes, r, s,arranged in it as shown in Fig. 2, into either of which one of a set ofpins, t, t, &c. is to be inserted. Each of the T bars and key slidesshould be so applied to their case, K, as to be capable of being movedlongitudinally therein.

From one side of the escapement wheel u, of the alarm apparatus a, studlv, projects and operates with a stop, fw, extending from the lower armof the lever F.

Fig. 10 is an underside view of the cover of the case, K, it beingrecessed (as shown at 00') to receive a ratchet, 0c, `and a retainingpawl, y, arranged as shown in such figure. The arbor of the ratchetextends through the 35 cover and carries an index pointer, a, whichoperates with a circle of divisions or a divided limb a, made on theupper or outer face of the cover. An impelling pawl, b, extending fromthat T bar which is connected with the latch E, works against the teethof the ratchet and during each forward movement of the T bar moves theratchet around a distance corresponding with one division of the scaleor circle a. Furthermore, there is a shaft or arbor c', within the caseK, and through its front end. Vhere such shaft projects beyond the case,it carries an arm cl, which rests on a spring c', (see Fig. 4). Directlyover the said arm is the bolt f, of a common drawer lock M, such boltbeing made to play toward and away from the arm. When shut downward by akey, the bolt depresses the arm and turns the shaft, but, on the boltbeing drawn backward, the spring will elevate the arm so as to turn theshaft in an opposite direction.

The shaft carries a catch g', formed in side view as shown in Fig. l1,which is a transverse section of the case, K, such sec- 110 tion beingtaken through the catch, the cover of the case being supposed to be downor closed. The said catch serves three purposes, viz., to lock the coverdown, to prevent the T bar that is connected with the drawer latch E,from being drawn backward far enough to depress the said latch, and alsoto hold back the T, in order to maintain the latch E, depressed, so thatthe drawer may be moved back and forth without being locked. For lockingthe cover, the catch, g', acts in concert with a recess, z, formed inthe cover as shown in Fig. 11. A key, c, serves to retract the bolt, f.

In preparing the apparatus for action, it is customary, not only toplace one pin, t, in some one of the key slides and in its hole, r, butthe remaining pins, '15, in the other slides-respectively and in thefrontvholes s, s, s, s thereof. Under these circumstances the pins willbe disposed as shown in Fig. 2, and whenever an attempt is made to drawbackward the key slide whose pin is in its hole, r, the T-bar I, will beretracted and the latch, E, will be depressed so asrto allow the drawerto be opened. On closing the drawer, the latch will be moved against thecatch, C, and will lock the drawer. F urther-` more, if either of theother key slides be drawn backward, the other T, bar, H, will beretracted and will move the lever, F, so as to remove its stop, w, fromunderneath the stud, o, so as to permit the clock work of the alarmapparatus to be put in action by its mainspring so as to cause thestriker to hit the bell and sound an alarm. Should an attempt be made toopen the drawer by pulling it forward an alarm will be sounded as thecatch, C, will move the latch and cause it to move the lever, F, so asto set the alarm works in action.

From the above it will be seen that either of the key slides may receivethe retraction pin for moving the TY bar, I, and consequently, we havethe means of making either key slide the operative of the latch E, ascircumstances may require. The apparatus, also aords the means ofdefining the number of times the drawer may have been opened and thusthe indicator of the cover becomes a tell-tale in case a person may haveobtained the secret of opening the drawer,

and have opened it without the knowledge of the cashier or person incharge of it. In this case the cover of the case, K, will be locked andunless the person who may have opened the drawer has a key to operatethe drawer lock, M, he cannot unlock the said cover so as to get at theindicator ratchet and move it and the index pointer backward as far asthey had moved it forward by the opening of the drawer. The ratchet, itsindeX, divided limb and operative mechanism applied both to the cover ofthe case, K, and to the Tbar H, I term the detector or in dicator.

I am aware of the burglar alarm apparatus patented by A. W. Decrow, inSeptember, 1858, I do not claim such as my inven tion differsessentially therefrom, and besides is far simpler in construction andoperation. Although I employ a series of key slides, I do not make useof any tumblers such as he uses to operate the latch. My alarum is veryefficient and takes .up a very little room in a` drawer.

I claim- 1. The combination and arrangement of the two levers, F, Gr,and the spring latch, E, with the clock alarm apparatus, D, the striker,a, and bell, 5,' and the combination of the same and a series ofperforated key slides and a set of, T, bars applied together and to suchlevers so as toiactuate the same substantially as specied.

2. I also claim the combination and ar rangement of the, T, bars, andthe perforated key slides to operate in manner as described.

3. I also claim in combination with the key lock, M, and the, T, bar I,a latching apparatus placed in the case K, and constructed so as to lockboth the cover and the T, bar, or either, substantially as specified.4:. I also claim the combination of the de tector or indicator with thecase cover and the, T, bar, H, and operated in manner as specified.

In testimony whereof, I have hereunto set my signature.

R. M. CAMPBELL.. Vitnesses:

R. H. EDDY, F. l?. HALE, Jr.

